Home / 9,174.91-12,649.32-6,620.52

Finding the Fourth Proportional to 9,174.91, 12,649.32 and 6,620.52

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Solution

The fourth proportional to 9,174.91, 12,649.32 and 6,620.52 is: 9,127.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,174.91 : 12,649.32 = 6,620.52 : x
  2. Step 2: Convert to fraction form
    9,174.91/12,649.32 = 6,620.52/x
  3. Step 3: Cross multiply
    9,174.91x = 12,649.32 × 6,620.52
  4. Step 4: Simplify right side
    9,174.91x = 83,745,076.05
  5. Step 5: Solve for x
    x = 83,745,076.05/9,174.91
  6. Step 6: Final answer
    x = 9,127.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.